Temperature at which a solid changes into a liquid
Melting point
Special quality or characteristic of something
Property
Molecule with more that one type of atom in it
Compound
Name the physical properties of matter
Density, boiling point, melting point and solubility
TRUE OR FALSE: when the temperature of water changes, some of its physical properties change too.
TRUE, because it can be frozen, warm or cold, and the substance will have the same components, but it will look differently.
A polar molecule has negative electrical charge in one side. Why attraction is important?
The attraction keeps the molecules together and affect how the molecules interact with other substances
Amount of mass in a certain volume of matter
Density
CHEMICAL PROPERTY that scientists use to identify the ability of matter to burn easily
Flammability
Smallest part of a substance that keep the properties of that substance
Molecule
Solid material with atoms that are arranged in a certain shape and extend in all directions
Crystal
When the surface of a liquid allows it to resist an outside force
Surface tension
Very small particle that is the basic unit that makes up matter
Atom
Simplest chemical substance, it can not be broken down
Element
Tells the kind and quantity of atoms in a substance
Chemical formula
Temperature at which a liquid changes into a gas
Boiling point
Examples of crystals
Ice, sugar, table salt, diamond
Ability of one material to dissolve in another
Solubility
Matter that always contains the same type of atoms arranged in the same way
Pure substance
Property that can be observed and measured only by changing the matter into a different kind of matter
Chemical property
Is water: a compound, a molecule or an element?
It is a compound, because it has hydrogen and oxygen. And it is also a molecule, because H2O has the characteristics of water.
Attraction between atoms and molecules, like the glue that keeps them together
Chemical bond
Examples of pure substances
Cooper and water
Property that can be observed and measured without changing the kind of matter
Physical property
When an object reacts to water and oxygen producing rust or change in color, that is an example of
Chemical property